Security & Safety

Japan’s Regulator Approves Draft Safety Reports On Kashiwazaki Kariwa-6 And -7

By David Dalton
2 October 2017

Japan’s Regulator Approves Draft Safety Reports On Kashiwazaki Kariwa-6 And -7
The seven-unit Kashiwazaki Kariwa nuclear station in Japan. Photo courtesy Tepco.

2 Oct (NucNet): Japan’s Nuclear Regulation Authority has approved draft reports which conclude that the Kashiwazaki Kariwa-6 and -7 nuclear plants in Niigata Prefecture, western Japan, meet revised safety standards introduced after the March 2011 Fukushima-Daiichi accident. The NRA approved the reports at a scheduled meeting on 27 September 2017, industry group the Japan Atomic Industrial Forum (Jaif) said. The final reports are expected to be approved at the NRA’s next meeting on 4 October 2017. The units will be the first Tokyo Electric Power Company (Tepco) plants to be approved, Jaif said. Tepco owns and operates Fukushima-Daiichi. Jaif said the Kashiwazaki Kariwa units will also be the first boiling-water reactors – the same type as those at Fukushima Daiichi – to meet the new standards. Jaif said permission to restart the reactors will probably be given officially early next year, following public reviews and a verdict from the Ministry of Economy, Trade and Industry on Tepco’s eligibility to operate the units. The agreement of Niigata Prefecture is another matter, Jaif told NucNet. “The position of the governor, Ryuichi Yoneyama, is that the cause of the Fukushima-Daiichi accident has not been verified, and that it will take three or four years before it can be verified. It could therefore be several years before Tepco can restart the units.” Kashiwazaki Kariwa-6 and -7 are both 1,315-MW BWRs. They began commercial operation in 1996 and 1997 respectively, but like all reactors in Japan were shut down following Fukushima-Daiichi.

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